CommonFun.CalcBossSceneEquipRefineLv
function CommonFun.CalcBossSceneEquipRefineLv()
local a = {
[0] = 4500,
[5] = 2800,
[6] = 1600,
[7] = 750,
[8] = 350
}
local weight = 0
for k, v in pairs(a) do
weight = weight + v
a[k] = weight
end
local randnum = math.random(1, weight)
for k, v in pairs(a) do
if v >= randnum then
return k
end
end
return 0
end